Algebraic Renormalization: Perturbative Renormalization, Symmetries and Anomalies
Springer Science & Business Media, May 17, 1995 - Science - 138 pages
The idea of this book originated from two series of lectures given by us at the Physics Department of the Catholic University of Petr6polis, in Brazil. Its aim is to present an introduction to the "algebraic" method in the perturbative renormalization of relativistic quantum field theory. Although this approach goes back to the pioneering works of Symanzik in the early 1970s and was systematized by Becchi, Rouet and Stora as early as 1972-1974, its full value has not yet been widely appreciated by the practitioners of quantum field theory. Becchi, Rouet and Stora have, however, shown it to be a powerful tool for proving the renormalizability of theories with (broken) symmetries and of gauge theories. We have thus found it pertinent to collect in a self-contained manner the available information on algebraic renormalization, which was previously scattered in many original papers and in a few older review articles. Although we have taken care to adapt the level of this book to that of a po- graduate (Ph. D. ) course, more advanced researchers will also certainly find it useful. The deeper knowledge of renormalization theory we hope readers will acquire should help them to face the difficult problems of quantum field theory. It should also be very helpful to the more phenomenology oriented readers who want to famili- ize themselves with the formalism of renormalization theory, a necessity in view of the sophisticated perturbative calculations currently being done, in particular in the standard model of particle interactions.
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Algebraic Renormalization: Perturbative Renormalization, Symmetries and ...
Olivier Piguet,Silvio P. Sorella
No preview available - 2013
anomalous dimension anticommuting BRS invariance BRS operator BRS transformations BRS variation Callan-Symanzik equation Chap classical action coboundary operator cocycle coefficient cohomology commutation composite field condition 6.1 consistency condition corresponding coupling constant defined denotes depend descent equations differential dimension bounded dimensional exterior derivative external fields Feynman field polynomials field theory gauge anomaly gauge condition gauge field gauge fixing gauge group gauge invariance gauge parameter gauge theories ghost field ghost number given graph Green functions insertion of dimension integrand invariant counterterms ladder Landau gauge latter Lie algebra Lie group linearized Slavnov-Taylor operator local cohomology modulo nilpotent nonrenormalization theorem nontrivial obey one-loop perturbation theory physical power-counting renormalizable proof quantum action quantum action principle quantum extension quantum fields Remark renormalizable rigid invariance rigid symmetry Sect sector Slavnov-Taylor identity solution space-time subgraphs Subsect subtraction supersymmetry topological tree approximation ultraviolet finiteness vanishing vertex functional Ward identities Ward operator Yang-Mills